"If you use a MiSTer FPGA, this thing is the real deal. So many big name retro controllers require so many button combos to get the right modes and have all sorts of compatibility issues, and this tidy little box just WORKS.
Make sure you have a proper data cable (lots of cheap USBC cables are power only) and have a keyboard handy for first time key mapping and... it just works! My 30 year old N64 controllers work on the N64 core like it's all OG hardware with no noticeable latency.
This isn't a SNAC connector if you're going for the uber-hard-core zero-latency pro-gamer setup, but for me this is much better- you get multiple controller options with remappable buttons and OSD commands.
Oh, and I picked "custom" and asked for a very specific two-tone color scheme and this guy was like "you got it" for no charge. Love it."
4dapter - NES/SNES/N64/Genesis to Nintendo Switch 2/Switch/PC/SuperStation/MiSTer controller adapter, zero latency over usb-c